WRF e o potencial eólico no Brasil em 2011

Abstract

The increasing demand and electric energy consumption, by both economic and social society, in addition to the worldwide politics for the implementation of generation systems employing renewable sources, has been determinant factors of the expansion of wind farms in different countries. To find out an installation local of wind power farms, it is of fundamental importance to proceed studies, perform analysis and evaluate the availability of the source to generate energy – that is, the wind at vertical levels which are consistent with the wind turbine height. Given that, scarcely the wind measurement data needed are available to consolidate the basic and fundamental requirements, particularly over Brazil, it is proposed, developed and a methodology is applied, for the assessment of wind energy potential over the country for a year. The required data for the mapping and assessment of wind energy potential, during the year 2011 were produced, for every hour, throughout the mesoscale model WRF (Weather Research and Forecasting) forecasting. The result evaluation has been performed in terms of daily mean wind average, number of sequential hours with wind, wind above pre-established values and ramp period, seasonal and annual analysis, wind frequency analysis and Weibull probability density. The general conclusion of the performed analysis has been the characterization of some region of the country, located nearby the shoreline of the Northeast and South of the county, as remarkable locals favorable for the installation of wind farms. However, it has been also pointed out that there are several other areas, scattered over the country, which can be suitable places with great energy potentiality.